Pump for carpet-cleaners.



T. B. DOWNEY.

PUMP FOR CARPET CLEANERS.

APPLIGATION FILED m1112211, 1010.

Patented Apr. 18, 1911.

PATENT oEEIoE.

PUMP FOR CARPET-CLEANERS.

Specicatien of Letters Patent.

Patented Apr. 18, 1911.

Application tiled June 28, 1910. Serial No. 569,381.

.To all whom t may concern: l

Be it known that I, THOMAS B. DowNEY, a citizen of the United States, residing at Springtown, in the county of Benton and State of Arkansas, have invented certain new and useful 'Improvements in Pumps for Carpet-Cleaners, of which the following is a specication.

This invention relates to carpetcleaners and particularly to that class vof carpet cleaners known as vacuum cleaners, wherein the dirt is removed from the carpet through the instrumentality of a suction created within the 'carpet cleaner.

Another object of this invention is to provide an improved means whereby the carpet cleaner may be adjusted to various sized people and also a means whereby the dirt may beseparated from the air as the same escapes or passes from the carpet cleaner.

With the above and other objects in view, this invention consists in the construction, combination, and arrangement of parts, all as hereinafter more fully described, claimed, and illustrated in the accompanying drawin s, wherein- Pigure 1 is a central vertical section of a carpet cleaner constructed in accordance with the present invention; Fig. 2 is a top plan view of the present invention, parts thereof being broken away; Fig. 3 is a bottom plan view showing one of the emptying doors partially open.

ln carrying out the present invention a casing .10 is provided which may be either rectangular or of other formation, shown rectangularly for the purposes of illustration, said casing-being divided into two compartments 10 and 10l by the central vertical partition 11. At each transverse end of the casing is an44 opening 12 which extends the entire width of said casing,

- thereby providin one opening for each 'coml partment 10 an 10, said opening having on t-he upper. side thereof the plate. 13 of resilient material `which extends outwardly and is adapted to normally rest upon the surface being cleaned. ach of the plates 13. has pivoted thereto at the inner terminal thereof the plate 14 which is adapted to normally entirely close the opening 12 being held in this position by the spring 15. This plate is readily moved-by any suction 'within the chambers 10. and 10, but prevents` the returning of any dirt to the carpet after the same has passed through the opening 12.

In each compartment 10 and 10 is mounted a rectangular cylinder 16 which is carried by the transverse ends of the casin 10 and has the lower end thereof locate approximately directly over the inner terminal of` the opening or passage 12. A top 17 is carried by the central vertical partition 11 and is interposed between the rectangular' cylinders 16. This top is 4provided with an opening 18 over each of the being adapted to normally be closed by t e gravity valves 19.

A walking beam 20 is pivoted between the brackets 21 mounted on the upper edge terminal thereof thelink l22. Each of the links 22 has secured thereto a iston or plunger 23 which'reciprocates within one ot' the rectangular cylinders 16`upon the movement of the walking beam. From this construction it will readily be understood that as the walking beam is operated the pistons 23 will reciprocate in the rectangular cylinders 16, one piston moving downwardly while the opposite piston moves upwardly. By this movement it will be understood that as one of the pistons moves downwardly an air pressure will be created in the compartment cooperating therewith, thereby forcing partment away from the opening 12, the air passing upwardly through the compartment and out the opening 18. When the piston moves upwardly a suction is created in the chamber with which it coperates, said Suction causing air to be drawn through the passage 12, thereby raising the plate and permitting the dirt to pass therethrough, P'said dirt being drawn therein by the suc- P'tion. f

A semi-circular rod 24 is secured at each terminal thereof centi-ally to each transverse end of the casing 10. A tubular rod 25 is pivoted between the brackets 21 adja' cent to the walking beam 20 and extends upwardly adjacent to the rod 24. An angular bracket 26 is carried by the tubular rod 25 adjacenr to the rod 24 and is adapted to clamp the latter between the arm'of said bracket and the rod 25 through the instrumentality of afset screw 27. Thus it will the dirt which has accumulated in the com-- `Mamaniamlatinama compartments 10 and l0, said openin s y of the partition 11 and has secured at each be understood that the tubular rod 25 may be retained in any position with respect to A* the longitudinal dimension of therod 24.

A handle 28 is carried by the rod-25 through the instrumentality of a shank 29 reciprocating in said tubular rod, said shank beingl retained in various positions in said tubular rod through the instrumentality of an enlargement 30 at the upper terminal of said l tubular rod having a set screw3l projecting therethrough and bearing against said shank.

A bracket 3:2 is detachably carried by the tubular rod .25 adjacent to the enlargement I 30 and has a transverse bearing 33 tormed therein, in which rotates the crank 34:,- said crank being connected to the Walking beam v by a detachable link 35. Thus it will be understood that as movement is imparted to the casing by the handle 28 through the instrumentality of the rod a rotary motion is imparted to the crank 34 which causes the link 35 to` reciprocate, thereby oscillating the walking beam. In order that the movement of the casing over the door may be comparatively easy a roller or Wheel 36 is mounted at each extremity of the lowera end of the partition 11. A fine gauze or fabric 37 is located below the top 17 and is adapted to filter the dirt from the air previous to the latter passing through the opening 18.

The dirt which accumulates in the compartments 10 and 10 is removed there-` from through the bottom thereof, said bot- .toms comprising the hinged members 38 which are retained in a closed position by y' the plate 39 pivoted to the partition. Each late is provided with an upwardly extendv ing flange 40 which is adapted to bear cylinder, a walking beam carried by said casing and pivotally connected to said piston, an adjustable handle carried'adjacent to said walking beam,means whereby the angle of said handle may be adjusted, and

means carried by said handle whereby saidV walking beam may be oscillated imparting a reciprocating movement to the pistons.

2. In a device of the class described, the combination with a casing, olf a -plurality of compartments formed therein', an inlet opening locatedl in each compartment, a cylinder located in each compartment, a piston mounted for movement in each of said cylinders, a walking beaincoperating with said pistons, an adjustable handle located adjacent said walking beam, means whereby the I 'angle oi 'aid handle may be adjusted, and

a crank rotatably mounted on said handle adapted to oscillate said walking beam,

thereby reciprocating said pistons.

In testimony' whereof I atiX my signature in presence ot' two witnesses.

. THOMAS -B..`D()WNEY. Vitnesses S. P. Gllurrrrn, vNl. R. STEELE. 

